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https://issues.apache.org/jira/browse/MAPREDUCE-1598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12845110#action_12845110
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Hemanth Yamijala commented on MAPREDUCE-1598:
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Amar, I don't find this key or the newly mapped key -
mapreduce.job.userhistorylocation - used anywhere in code in trunk. Therefore,
I think this bug does not exist for trunk at least ? But we might need fixes
for earlier versions.
> Wrongly configured 'hadoop.job.history.user.location' can cause jobs to be
> pinned in JobTracker's memory forever
> ----------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1598
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1598
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Affects Versions: 0.21.0
> Reporter: Amar Kamat
> Priority: Blocker
>
> Wrongly configured 'hadoop.job.history.user.location' can disable
> job-history. Jobs retires when JobHistory notifies the JobTracker after
> moving the history file to the done folder (i.e
> mapreduce.jobtracker.jobhistory.completed.location). If the JobHistory gets
> disabled, JobTracker would not receive any notification and thus jobs will be
> pinned in JobTracker's memory forever.
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